-
-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
loggerLink.ts
172 lines (155 loc) · 4.36 KB
/
loggerLink.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/// <reference lib="dom.iterable" />
// `dom.iterable` types are explicitly required for extracting `FormData` values,
// as all implementations of `Symbol.iterable` are separated from the main `dom` types.
// Using triple-slash directive makes sure that it will be available,
// even if end-user `tsconfig.json` omits it in the `lib` array.
import { AnyRouter } from '@trpc/server';
import { observable, tap } from '@trpc/server/observable';
import { TRPCClientError } from '..';
import { Operation, OperationResultEnvelope, TRPCLink } from './types';
type ConsoleEsque = {
log: (...args: any[]) => void;
error: (...args: any[]) => void;
};
type EnableFnOptions<TRouter extends AnyRouter> =
| (Operation & {
direction: 'up';
})
| {
direction: 'down';
result: OperationResultEnvelope<unknown> | TRPCClientError<TRouter>;
};
type EnabledFn<TRouter extends AnyRouter> = (
opts: EnableFnOptions<TRouter>,
) => boolean;
type LoggerLinkFnOptions<TRouter extends AnyRouter> = Operation &
(
| {
/**
* Request was just initialized
*/
direction: 'up';
}
| {
/**
* Request result
*/
direction: 'down';
result: OperationResultEnvelope<unknown> | TRPCClientError<TRouter>;
elapsedMs: number;
}
);
type LoggerLinkFn<TRouter extends AnyRouter> = (
opts: LoggerLinkFnOptions<TRouter>,
) => void;
const palette = {
query: ['72e3ff', '3fb0d8'],
mutation: ['c5a3fc', '904dfc'],
subscription: ['ff49e1', 'd83fbe'],
};
export interface LoggerLinkOptions<TRouter extends AnyRouter> {
logger?: LoggerLinkFn<TRouter>;
enabled?: EnabledFn<TRouter>;
/**
* Used in the built-in defaultLogger
*/
console?: ConsoleEsque;
}
function isFormData(value: unknown): value is FormData {
if (typeof FormData === 'undefined') {
// FormData is not supported
return false;
}
return value instanceof FormData;
}
// maybe this should be moved to it's own package
const defaultLogger =
<TRouter extends AnyRouter>(
c: ConsoleEsque = console,
): LoggerLinkFn<TRouter> =>
(props) => {
const { direction, type, path, context, id } = props;
const [light, dark] = palette[type];
const rawInput = props.input;
const input = isFormData(rawInput)
? Object.fromEntries(rawInput)
: rawInput;
const css = `
background-color: #${direction === 'up' ? light : dark};
color: ${direction === 'up' ? 'black' : 'white'};
padding: 2px;
`;
const parts = [
'%c',
direction === 'up' ? '>>' : '<<',
type,
`#${id}`,
`%c${path}%c`,
'%O',
];
const args: any[] = [
css,
`${css}; font-weight: bold;`,
`${css}; font-weight: normal;`,
];
if (props.direction === 'up') {
args.push({ input, context: context });
} else {
args.push({
input,
result: props.result,
elapsedMs: props.elapsedMs,
context,
});
}
const fn: 'error' | 'log' =
props.direction === 'down' &&
props.result &&
(props.result instanceof Error || 'error' in props.result.result)
? 'error'
: 'log';
c[fn].apply(null, [parts.join(' ')].concat(args));
};
export function loggerLink<TRouter extends AnyRouter = AnyRouter>(
opts: LoggerLinkOptions<TRouter> = {},
): TRPCLink<TRouter> {
const { enabled = () => true } = opts;
const { logger = defaultLogger(opts.console) } = opts;
return () => {
return ({ op, next }) => {
return observable((observer) => {
// ->
enabled({ ...op, direction: 'up' }) &&
logger({
...op,
direction: 'up',
});
const requestStartTime = Date.now();
function logResult(
result: OperationResultEnvelope<unknown> | TRPCClientError<TRouter>,
) {
const elapsedMs = Date.now() - requestStartTime;
enabled({ ...op, direction: 'down', result }) &&
logger({
...op,
direction: 'down',
elapsedMs,
result,
});
}
return next(op)
.pipe(
tap({
next(result) {
logResult(result);
},
error(result) {
logResult(result);
},
}),
)
.subscribe(observer);
});
};
};
}