| 46 | } |
| 47 | |
| 48 | func generateInvokeTool(path string, method string, contentType string, params map[string]*Param) func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { |
| 49 | return func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { |
| 50 | invokeAddress := utils.GatewayInvoke(ctx) |
| 51 | if invokeAddress == "" { |
| 52 | return nil, fmt.Errorf("invoke address is empty") |
| 53 | } |
| 54 | u, err := url.Parse(invokeAddress) |
| 55 | if err != nil { |
| 56 | return nil, fmt.Errorf("invalid invoke address %s", invokeAddress) |
| 57 | } |
| 58 | if u.Scheme == "" { |
| 59 | u.Scheme = "http" |
| 60 | } |
| 61 | |
| 62 | queries := url.Values{} |
| 63 | headers := make(map[string]string) |
| 64 | bodyParam := NewBodyParam(contentType) |
| 65 | for k, p := range params { |
| 66 | vv, ok := request.GetArguments()[k] |
| 67 | if !ok && p.required { |
| 68 | return nil, fmt.Errorf("param %s is required", k) |
| 69 | } |
| 70 | if p.position == PositionHeader || p.position == PositionQuery || p.position == PositionPath { |
| 71 | v, ok := vv.(string) |
| 72 | if !ok || v == "<nil>" { |
| 73 | if p.required { |
| 74 | return nil, fmt.Errorf("param %s is required", k) |
| 75 | } |
| 76 | continue |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | switch p.position { |
| 81 | case PositionPath: |
| 82 | path = strings.ReplaceAll(path, "{"+k+"}", fmt.Sprintf("%v", vv)) |
| 83 | case PositionQuery: |
| 84 | queries.Set(k, fmt.Sprintf("%v", vv)) |
| 85 | case PositionHeader: |
| 86 | headers[k] = fmt.Sprintf("%v", vv) |
| 87 | case PositionBody: |
| 88 | if vv == nil { |
| 89 | continue |
| 90 | } |
| 91 | bodyParam.Set(k, vv) |
| 92 | } |
| 93 | } |
| 94 | bodyData, err := bodyParam.Encode() |
| 95 | if err != nil { |
| 96 | return nil, err |
| 97 | } |
| 98 | u.Path = path |
| 99 | u.RawQuery = queries.Encode() |
| 100 | |
| 101 | req, err := http.NewRequest(method, u.String(), strings.NewReader(bodyData)) |
| 102 | if err != nil { |
| 103 | return nil, err |
| 104 | } |
| 105 | for k, v := range headers { |