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GQL API for getStorageAt and getLogs #77
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18266c4
Get receipt CID and block data for logs.
ashwinphatak b90fcb5
Get logs API, with receipt CID and raw IPLD block.
ashwinphatak a284a56
Get storage API, with storage leaf CID and raw IPLD block.
ashwinphatak b2828a8
Compute leaf key from slot.
ashwinphatak a3ca08b
Return empty result instead of error if slot not found in storage table.
ashwinphatak 0a14bd9
Update method used to get storage slot.
ashwinphatak 1d18d1f
Update gopsutil to fix build on mac.
arijitAD 9a5581b
Fix failing unit tests.
arijitAD f1a61d0
Add graphql tests.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package graphql | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/common/hexutil" | ||
| gqlclient "github.com/machinebox/graphql" | ||
| ) | ||
|
|
||
| type StorageResponse struct { | ||
| Cid string `json:"cid"` | ||
| Value common.Hash `json:"value"` | ||
| IpldBlock hexutil.Bytes `json:"ipldBlock"` | ||
| } | ||
|
|
||
| type GetStorageAt struct { | ||
| Response StorageResponse `json:"getStorageAt"` | ||
| } | ||
|
|
||
| type LogResponse struct { | ||
| Topics []common.Hash `json:"topics"` | ||
| Data hexutil.Bytes `json:"data"` | ||
| } | ||
|
|
||
| type GetLogs struct { | ||
| Responses []LogResponse `json:"getLogs"` | ||
| } | ||
|
|
||
| type Client struct { | ||
| client *gqlclient.Client | ||
| } | ||
|
|
||
| func NewClient(endpoint string) *Client { | ||
| client := gqlclient.NewClient(endpoint) | ||
| return &Client{client: client} | ||
| } | ||
|
|
||
| func (c *Client) GetLogs(ctx context.Context, hash common.Hash, address common.Address) ([]LogResponse, error) { | ||
| getLogsQuery := fmt.Sprintf(` | ||
| query{ | ||
| getLogs(blockHash: "%s", contract: "%s") { | ||
| data | ||
| topics | ||
| } | ||
| } | ||
| `, hash.String(), address.String()) | ||
|
|
||
| req := gqlclient.NewRequest(getLogsQuery) | ||
| req.Header.Set("Cache-Control", "no-cache") | ||
|
|
||
| var respData map[string]interface{} | ||
| err := c.client.Run(ctx, req, &respData) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| jsonStr, err := json.Marshal(respData) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| var logs GetLogs | ||
| err = json.Unmarshal(jsonStr, &logs) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return logs.Responses, nil | ||
| } | ||
|
|
||
| func (c *Client) GetStorageAt(ctx context.Context, hash common.Hash, address common.Address, slot string) (*StorageResponse, error) { | ||
| getLogsQuery := fmt.Sprintf(` | ||
| query{ | ||
| getStorageAt(blockHash: "%s", contract: "%s",slot: "%s") { | ||
| cid | ||
| value | ||
| ipldBlock | ||
| } | ||
| } | ||
| `, hash.String(), address.String(), common.HexToHash(slot)) | ||
|
|
||
| req := gqlclient.NewRequest(getLogsQuery) | ||
| req.Header.Set("Cache-Control", "no-cache") | ||
|
|
||
| var respData map[string]interface{} | ||
| err := c.client.Run(ctx, req, &respData) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| jsonStr, err := json.Marshal(respData) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| var storageAt GetStorageAt | ||
| err = json.Unmarshal(jsonStr, &storageAt) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &storageAt.Response, nil | ||
| } |
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For compatibility with EIP-2718 enveloped transactions and receipts (EIP-2930 access list and EIP-1559 dynamic fee) we can no longer use RLP encoding/decoding, we instead need to use the
MarshalBinaryandUnmarshalBinarymethods for receipts and transactions.Related issue and more info here: #78 (comment).