319 lines
12 KiB
Markdown
319 lines
12 KiB
Markdown
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---
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title: les Namespace
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sort_key: C
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---
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The `les` API allows you to manage LES server settings, including client parameters and payment settings for prioritized clients. It also provides functions to query checkpoint information in both server and client mode.
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* TOC
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{:toc}
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### les_serverInfo
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Get information about currently connected and total/individual allowed connection capacity.
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| Client | Method invocation |
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|:--------|-------------------------------------------------------------|
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| Go | `les.ServerInfo() map[string]interface{}` |
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| Console | `les.serverInfo()` |
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| RPC | `{"method": "les_serverInfo", "params": []}` |
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#### Example
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```javascript
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> les.serverInfo
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{
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freeClientCapacity: 16000,
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maximumCapacity: 1600000,
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minimumCapacity: 16000,
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priorityConnectedCapacity: 180000,
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totalCapacity: 1600000,
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totalConnectedCapacity: 180000
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}
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```
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### les_clientInfo
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Get individual client information (connection, balance, pricing) on the specified list of clients or for all connected clients if the ID list is empty.
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| Client | Method invocation |
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|:--------|---------------------------------------------------------------------------|
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| Go | `les.ClientInfo(ids []enode.ID) map[enode.ID]map[string]interface{}` |
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| Console | `les.clientInfo([id, ...])` |
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| RPC | `{"method": "les_clientInfo", "params": [[id, ...]]}` |
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#### Example
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```javascript
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> les.clientInfo([])
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{
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37078bf8ea160a2b3d129bb4f3a930ce002356f83b820f467a07c1fe291531ea: {
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capacity: 16000,
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connectionTime: 11225.335901136,
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isConnected: true,
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pricing/balance: 998266395881,
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pricing/balanceMeta: "",
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pricing/negBalance: 501657912857,
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priority: true
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},
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6a47fe7bb23fd335df52ef1690f37ab44265a537b1d18eb616a3e77f898d9e77: {
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capacity: 100000,
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connectionTime: 9874.839293082,
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isConnected: true,
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pricing/balance: 2908840710198,
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pricing/balanceMeta: "qwerty",
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pricing/negBalance: 206242704507,
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priority: true
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},
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740c78f7d914e5c763731bc751b513fc2388ffa0b47db080ded3e8b305e68c75: {
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capacity: 16000,
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connectionTime: 3089.286712188,
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isConnected: true,
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pricing/balance: 998266400174,
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pricing/balanceMeta: "",
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pricing/negBalance: 55135348863,
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priority: true
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},
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9985ade55b515f79f64274bf2ae440ca8c433cfb0f283fb6010bf46f796b2a3b: {
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capacity: 16000,
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connectionTime: 11479.335479545,
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isConnected: true,
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pricing/balance: 998266452203,
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pricing/balanceMeta: "",
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pricing/negBalance: 564116425655,
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priority: true
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},
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ce65ada2c3e17d6da00cec0b3cc4c8ed5e74428b60f42fa287eaaec8cca62544: {
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capacity: 16000,
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connectionTime: 7095.794385419,
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isConnected: true,
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pricing/balance: 998266448492,
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pricing/balanceMeta: "",
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pricing/negBalance: 214617753229,
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priority: true
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},
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e1495ceb6db842f3ee66428d4bb7f4a124b2b17111dae35d141c3d568b869ef1: {
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capacity: 16000,
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connectionTime: 8614.018237937,
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isConnected: true,
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pricing/balance: 998266391796,
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pricing/balanceMeta: "",
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pricing/negBalance: 185964891797,
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priority: true
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}
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}
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```
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### les_priorityClientInfo
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Get individual client information on clients with a positive balance in the specified ID range, `start` included, `stop` excluded. If `stop` is zero then results are returned until the last existing balance entry. `maxCount` limits the number of returned results. If the count limit is reached but there are more IDs in the range then the first missing ID is included in the result with an empty value assigned to it.
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| Client | Method invocation |
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|:--------|----------------------------------------------------------------------------------------------------|
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| Go | `les.PriorityClientInfo(start, stop enode.ID, maxCount int) map[enode.ID]map[string]interface{}` |
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| Console | `les.priorityClientInfo(id, id, number)` |
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| RPC | `{"method": "les_priorityClientInfo", "params": [id, id, number]}` |
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#### Example
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```javascript
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> les.priorityClientInfo("0x0000000000000000000000000000000000000000000000000000000000000000", "0x0000000000000000000000000000000000000000000000000000000000000000", 100)
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{
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37078bf8ea160a2b3d129bb4f3a930ce002356f83b820f467a07c1fe291531ea: {
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capacity: 16000,
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connectionTime: 11128.247204027,
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isConnected: true,
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pricing/balance: 999819815030,
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pricing/balanceMeta: "",
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pricing/negBalance: 501657912857,
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priority: true
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},
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6a47fe7bb23fd335df52ef1690f37ab44265a537b1d18eb616a3e77f898d9e77: {
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capacity: 100000,
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connectionTime: 9777.750592047,
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isConnected: true,
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pricing/balance: 2918549830576,
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pricing/balanceMeta: "qwerty",
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pricing/negBalance: 206242704507,
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priority: true
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},
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740c78f7d914e5c763731bc751b513fc2388ffa0b47db080ded3e8b305e68c75: {
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capacity: 16000,
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connectionTime: 2992.198001116,
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isConnected: true,
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pricing/balance: 999819845102,
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pricing/balanceMeta: "",
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pricing/negBalance: 55135348863,
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priority: true
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},
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9985ade55b515f79f64274bf2ae440ca8c433cfb0f283fb6010bf46f796b2a3b: {
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capacity: 16000,
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connectionTime: 11382.246766963,
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isConnected: true,
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pricing/balance: 999819871598,
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pricing/balanceMeta: "",
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pricing/negBalance: 564116425655,
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priority: true
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},
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ce65ada2c3e17d6da00cec0b3cc4c8ed5e74428b60f42fa287eaaec8cca62544: {
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capacity: 16000,
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connectionTime: 6998.705683407,
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isConnected: true,
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pricing/balance: 999819882177,
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pricing/balanceMeta: "",
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pricing/negBalance: 214617753229,
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priority: true
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},
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e1495ceb6db842f3ee66428d4bb7f4a124b2b17111dae35d141c3d568b869ef1: {
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capacity: 16000,
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connectionTime: 8516.929533901,
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isConnected: true,
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pricing/balance: 999819891640,
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pricing/balanceMeta: "",
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pricing/negBalance: 185964891797,
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priority: true
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}
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}
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> les.priorityClientInfo("0x4000000000000000000000000000000000000000000000000000000000000000", "0xe000000000000000000000000000000000000000000000000000000000000000", 2)
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{
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6a47fe7bb23fd335df52ef1690f37ab44265a537b1d18eb616a3e77f898d9e77: {
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capacity: 100000,
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connectionTime: 9842.11178361,
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isConnected: true,
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pricing/balance: 2912113588853,
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pricing/balanceMeta: "qwerty",
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pricing/negBalance: 206242704507,
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priority: true
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},
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740c78f7d914e5c763731bc751b513fc2388ffa0b47db080ded3e8b305e68c75: {
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capacity: 16000,
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connectionTime: 3056.559199029,
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isConnected: true,
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pricing/balance: 998790060237,
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pricing/balanceMeta: "",
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pricing/negBalance: 55135348863,
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priority: true
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},
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9985ade55b515f79f64274bf2ae440ca8c433cfb0f283fb6010bf46f796b2a3b: {}
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}
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```
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### les_addBalance
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Add signed value to the token balance of the specified client and update its `meta` tag. The balance cannot go below zero or over `2^^63-1`. The balance values before and after the update are returned. The `meta` tag can be used to store a sequence number or reference to the last processed incoming payment, token expiration info, balance in other currencies or any application-specific additional information.
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| Client | Method invocation |
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|:--------|-----------------------------------------------------------------------------------|
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| Go | `les.AddBalance(id enode.ID, value int64, meta string) ([2]uint64, error)}` |
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| Console | `les.addBalance(id, number, string)` |
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| RPC | `{"method": "les_addBalance", "params": [id, number, string]}` |
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#### Example
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```javascript
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> les.addBalance("0x6a47fe7bb23fd335df52ef1690f37ab44265a537b1d18eb616a3e77f898d9e77", 1000000000, "qwerty")
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[968379616, 1968379616]
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```
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### les_setClientParams
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Set capacity and pricing factors for the specified list of connected clients or for all connected clients if the ID list is empty.
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| Client | Method invocation |
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|:--------|-----------------------------------------------------------------------------------|
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| Go | `les.SetClientParams(ids []enode.ID, params map[string]interface{}) error` |
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| Console | `les.setClientParams([id, ...], {string: value, ...})` |
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| RPC | `{"method": "les_setClientParams", "params": [[id, ...], {string: value, ...}]}` |
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#### Example
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```javascript
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> les.setClientParams(["0x6a47fe7bb23fd335df52ef1690f37ab44265a537b1d18eb616a3e77f898d9e77"], {
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"capacity": 100000,
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"pricing/timeFactor": 0,
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"pricing/capacityFactor": 1000000000,
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"pricing/requestCostFactor": 1000000000,
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"pricing/negative/timeFactor": 0,
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"pricing/negative/capacityFactor": 1000000000,
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"pricing/negative/requestCostFactor": 1000000000,
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})
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null
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```
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### les_setDefaultParams
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Set default pricing factors for subsequently connected clients.
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| Client | Method invocation |
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|:--------|-----------------------------------------------------------------------------------|
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| Go | `les.SetDefaultParams(params map[string]interface{}) error` |
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| Console | `les.setDefaultParams({string: value, ...})` |
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| RPC | `{"method": "les_setDefaultParams", "params": [{string: value, ...}]}` |
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#### Example
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```javascript
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> les.setDefaultParams({
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"pricing/timeFactor": 0,
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"pricing/capacityFactor": 1000000000,
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"pricing/requestCostFactor": 1000000000,
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"pricing/negative/timeFactor": 0,
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"pricing/negative/capacityFactor": 1000000000,
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"pricing/negative/requestCostFactor": 1000000000,
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})
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null
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```
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### les_latestCheckpoint
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Get the index and hashes of the latest known checkpoint.
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| Client | Method invocation |
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|:--------|-------------------------------------------------------------|
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| Go | `les.LatestCheckpoint() ([4]string, error)` |
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| Console | `les.latestCheckpoint()` |
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| RPC | `{"method": "les_latestCheckpoint", "params": []}` |
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#### Example
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```javascript
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> les.latestCheckpoint
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["0x110", "0x6eedf8142d06730b391bfcbd32e9bbc369ab0b46ae226287ed5b29505a376164", "0x191bb2265a69c30201a616ae0d65a4ceb5937c2f0c94b125ff55343d707463e5", "0xf58409088a5cb2425350a59d854d546d37b1e7bef8bbf6afee7fd15f943d626a"]
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```
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### les_getCheckpoint
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Get checkpoint hashes by index.
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| Client | Method invocation |
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|:--------|-------------------------------------------------------------|
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| Go | `les.GetCheckpoint(index uint64) ([3]string, error)` |
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| Console | `les.getCheckpoint(number)` |
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| RPC | `{"method": "les_getCheckpoint", "params": [number]}` |
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#### Example
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```javascript
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> les.getCheckpoint(256)
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["0x93eb4af0b224b1097e09181c2e51536fe0a3bf3bb4d93e9a69cab9eb3e28c75f", "0x0eb055e384cf58bc72ca20ca5e2b37d8d4115dce80ab4a19b72b776502c4dd5b", "0xda6c02f7c51f9ecc3eca71331a7eaad724e5a0f4f906ce9251a2f59e3115dd6a"]
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```
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### les_getCheckpointContractAddress
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Get the address of the checkpoint oracle contract.
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| Client | Method invocation |
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|:--------|-------------------------------------------------------------------|
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| Go | `les.GetCheckpointContractAddress() (string, error)` |
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| Console | `les.checkpointContractAddress()` |
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| RPC | `{"method": "les_getCheckpointContractAddress", "params": []}` |
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#### Example
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```javascript
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> les.checkpointContractAddress
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"0x9a9070028361F7AAbeB3f2F2Dc07F82C4a98A02a"
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```
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